The early ancestors of horses showed the presence of digits on their limbs, while modern horses have hooves. What are likely possible reasons for this change?

Answers

Answer 1

Answer:

The digets were most likely not needed anymore so as the horses evolved hey gain other traits to help them survive.


Related Questions

define and understand the following terms:(1)Phylum (2)Class (3)Family (4)Order (5)Genus

Answers

Explanation:

phyllum: group group of related classes

classes: group of related order

family: a group of related genera (genus)

order: group of related families

genus: group of related species

Answer:

(i) Phylum

The phylum is second highest unit of classification after Kingdom. It includes one or more related classes of animals. In plants, instead of phylum, the term ‘division’ is used.

(ii) Class

The class is a taxonomic group consisting of one or more related orders. For example, the class, Mammalia, includes many orders like Primata (Man), Carnivora (tiger) etc.

(iii) Family

Family is a taxonomic group containing one or more related genera, eg., Family hominidae contains apes, monkeys and man. In plants, families are categorized on the basis of vegetative and reproductive features.

(iv) Order

Order is a taxonomic group containing one or more families. For example, the order, carnivora, includes many families.

(v) Genus

Genus is a taxonomic group including closely related species. For example, the genus, Solanum, includes many species such as nigrum, melongena, tuberosum, etc.

I hope it's helpful!

Chytrids have some unique characteristics that are different from the other groups of fungi. What characteristics make them unique? Check all that apply.

Their spores are produced in sac-shaped structures.
Their spores are produced in club-shaped structures.
Their reproductive cells have flagella.
Their reproductive cells have several nuclei.
They live in wet places.
They live in dry places.

Answers

Answer:

3 & 5 or C & E

Explanation:

❌ Their spores are produced in sac-shaped structures.

❌Their spores are produced in club-shaped structures.

✔ Their reproductive cells have flagella.

❌ Their reproductive cells have several nuclei.

✔ They live in wet places.

❌ They live in dry places.

edge 2021

Answer:

3 & 5 or C & E

Explanation:

✔ Their reproductive cells have flagella

✔ They live in wet places.

Time4Learning

Welp: That moment I knew I didn't pay attention when I should have

Answers

Answer:

a series circuit has a 2 Ω (ohm) resistor, a 5 Ω resistor, and a 7 Ω resistor. The total resistance of the circuit is 2 + 5 + 7 = 14 Ω.

Explanation:

Not very good for you

Answer:

lol

Explanation:

Yeah you need to start paying attention in class

An_____looks like a circle with two longer, flatter sides.
A) axis
B) inertia
C) ellipse
HELP please IMMA GIVE BRANLIEST

Answers

Answer:

An ellipse looks like a circle with two flatter, longer sides.

Explanation:

An ellipse is essentially a fancy word for an oval. Your answer is C!

An Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).

What is an Ellipse?

An ellipse is defined as a plane curve that encloses two focal points such that for all points on the curve, the sum of the two distances to the focal points is a constant that generalizes to a circle, which is of particular type is an ellipse with the same two center points.

An ellipse having eccentricity less than one represents the locus of points, the sum of whose distances from two foci of the ellipse is a constant value. This looks like a circle with two longer, flatter sides.

Examples of ellipsoids in our daily life are the shape of an egg in two dimensions and the running track in a sports stadium.

Thus, an Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).

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2. Create a poster on how one should be careful around animals and avoid animal attack.
Remember, a poster must have
a slogan
b. a picture
a few words​

Answers

This seems easy.. You got this.

What type of metamorphosis does a monarch butterfly undergo?

1. complete metamorphosis
2. incomplete metamorphosis

Answers

Answer:

1. complete metamorphosis

Answer:

Complete Metamorphosis

Explanation:

This means that there are four distinct stages: an egg, larva (caterpillar), pupa (chrysalis), and adult stage. 

3. What do cells create that help them do their job?
I

Answers

Answer:

No entiendo

Explanation:

ok okshdjfjdhdhdjd

HELPP PLZZZZZZ !!!!!!!!
What provides the energy for all living processes?
A. chemical bonds
B. ionic compounds
C. radioactive isotopes

Answers

Answer:

C

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

Which worm shown is most likely a segmented worm?

Answers

Answer:

phylum Annelida and and leeches

Explanation:

Answer:

B

Explanation:

What is the mass of a box accelerating at 3 m/s^2 applying 36 N of force? Hint: Mass = force / acceleration​

Answers

Answer:

I have attached a picture of me explaining how to find the mass. Hope this helps, thank you !!

PLEASE ANSWER FAST WILL MARK BRAINLYEST THIS IS DUR IN A HOUR

You have three options for this assessment. Each option is related to one of the topics you finished in this path. Read through each option and dec
• Option 1: This is It!
• Option 2: Speak with Good Purpose
• Option 3: To Affinity and Beyond
Option 1: This is It!
You have learned that you can turn any moment into a This Is It! moment and that you can use the OTFD strategy to improve your communication
practice what you have learned by reflecting on your This Is It! attitude and creating your own OTFD.
This option has two parts. Read all parts, including the option 1 rubric, before beginning.
Part I: This Is It! Reflection
Think about the tasks you performed last week, from chores at home to things you did for school. Write about two specific situations where it is ea:
playing soccer with your friends, talking to your friend on the phone, or having dinner with your family.
Write about two specific areas in your life where it is not as easy to have a This Is It! attitude. For example, cleaning the kitchen after dinner, sitting
What is a specific strategy you can use to have your This is it! attitude in those times you wrote about? For example, if it is hard for you to have a
kitchen after dinner, you can put on your iPod and dance around the kitchen as you get everything by the sink, clean it all up, and put everything a
Part II: OTFD
Consider the following scenarios:
. Imagine your friend asks for your opinion about an outfit she wants to buy.
• Your friend wants to know what you think about a certain video game that is new in stores.
• You want to ask someone you like to come to your soccer game.
Something else you find in your everyday life.

Answers

Various evolutionary ideas had already been proposed to explain new findings in biology. There was growing support for such ideas among dissident anatomists and the general public, but during the first half of the 19th century the English scientific establishment was closely tied to the Church of England, while science was part of natural theology. Ideas about the transmutation of species were controversial as they conflicted with the beliefs that species were unchanging parts of a designed hierarchy and that humans were unique, unrelated to other animals. The political and theological implications were intensely debated, but transmutation was not accepted by the scientific mainstream.

Please help me with this biology question...........


Chloroplasts are present in some plant cells only Give an example of plant cells that do not contain chloroplasts and explain why​

Answers

Answer:

Chloroplast is specific to plant cell because plants are the autotrophs which can prepare their food by conversion of light energy to chemical energy. It is the vital photosynthetic pigment in leaves as it involves the conversion of light energy into chemical energy.

hope it is helpful.

Answer:

Please let me no if you still need help on this

Explanation:

I will glady help!

How many electrons surround the
nucleus of an atom of Carbon?

Answers

Answer:

it has 2 atoms of carbon

Explanation:

Answer:

There are 6 electrons in a carbon atom.

Explanation:

1.Truong made a pitcher of lemonade for a picnic. Which action shows that lemonade is a liquid and not a solid or a gas?A.Thawing itB.Filling a spiral straw halfway with itC.Heating it up in the sunlightD.Squeezing lemons to make it.

Answers

Answer:

either c or d

Explanation:

An area of land that is not used by humans for agriculture, industry, or habitation is called __________.
A)
wilderness
B)
rangeland
C)
public land
D)
sustainable forest
E)
private land

Answers

Explanation:

range land....,....,,...................

The answer to this question is rangeland

How are rabbits adapted? Write in short.​

Answers

Answer:

The rabbit's eyes are set high on the head, and is complimented with a weak but very flexible neck which allows the animal to rotate its head. These adaptations let the rabbit have a greater field of vision, which helps in spotting food as well as predators. They also have strong legs that are made for running.

Explanation:

PLZZ HELP IM DOING A UNIT ASSESMENT!!!!
What types of cells would contain cell walls and what types of cells would contain a cell membrane?

Answers

They have walls plants have walls

Answer:

I agree with the other person

have a good day :)

Explanation:


The amino
Each codon calls for one
acids are linked together by
It takes many amino acids to form a protein.
plz answer quick

Answers

Answer:

1. Proteins.

2. Peptide Bonds.

Explanation:

I majored in Biology

What sentence best supports the statement that hormones are involved in the regulation of homeostasis?

A.
The hormone cortisol suppresses the immune system and is produced when the body is under stress.
B.
The hormone oxytocin promotes labor contractions of the uterus during childbirth.
C.
The hormone melatonin induces sleep and its production is slowed by exposure to light.
D.
The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low.

Answers

Answer:

D

Explanation:

It is an homeostatic process

What characteristic do sea stars and brittle stars have in common?

Both have flexible joints.
Both have teeth-like feeding structures.
Both use tube feet to catch prey.
Both have tentacles.

Answers

Answer:

They typically have a tough, spiny surface, which inspired their name (in Greek, echinos means “spiny” and derma means “skin”). They also have the unusual ability to regrow lost body parts, and sea stars and brittle stars can regrow arms if broken off or eaten

Explanation:

Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.

What are sea stars and brittle stars?

Echinoderms with a star form that belongs to the class Asteroidea are known as starfish or sea stars. These terms are frequently used incorrectly to refer to ophiuroids, which are properly called brittle stars or basket stars in common usage. Due to their membership in the class Asteroidea, starfish are also referred to as asteroids.

The benthic (bottom-feeding) fauna of the maritime environment includes brittle stars. They belong to the Phylum Echinodermata, which includes marine organisms with radial symmetry, five components, and frequent spines. They are commonly referred to as echinoderms.

Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.

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‼️‼️‼️‼️‼️
which population is most likely to increase as a result?
A. deer
B. mouse
C. owl
D. Hawk

Answers

Answer:

A. Deer

Explanation:

cause only mountain lions eat deers. without them theyll increase.

I think it would be d , hawks

find out what do the terms algal bloom and red tides signify​

Answers

Answer:

Find out what do the terms 'algal bloom' and 'red-tides' signify. Algal bloom refers to an increase in the population of algae or blue-green algae in water due to an enrichment of nutrients, resulting in discoloration of the water body. ... Red tides are caused by red dinoflagellates (Gonyaulax) that multiply rapidly.

I hope it's helpful!

Answer:

Algal bloom refers to vigorous growth of algae or blue-green algae in water, due to enrichment of water body with minerals nutrients coming from fields, resulting in discoloration of the water body. This causes an increase in the biological oxygen demand (BOD), resulting in the death of fishes and other aquatic animals, due to suffocation.

Explanation:

During the process of photosynthesis, green plants produce...
(1) sunlight
(3) nitrogen
(2) methane
(4) sugar

Answers

Answer:

4

Explanation:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel

All electromagnetic waves move at what speed?

Answers

Answer:

Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.

Hope it helped!!!

Answer:

          8

3.0 * 10 meters per second

Explanation:

Which type of cell is considered the least complex?

Answers

Answer:

tissues.

organs.

organ systems.

organism.

Explanation:

Answer:

the answer would be tissues

Mitosis vs Meiosis, someone help me with this, ill give brainiest.

Answers

Mitosis: chromosome # stays same in each cell, purpose is to produce more body cells, creates 2 identical sister cells
meiosis: purpose is to produce sex cells for reproduction, creates 4 genetically different cells, chromosome # cut in half in new cells
Both: cell division, dna copied during interphase, start with parent cell
Points of differences between Mitosis and Meiosis:1. Nuclei

Mitosis gives two nuclei, and hence two cells while meiosis gives four.

2. Cells

Mitosis gives identical cells to each other and to the mother cell while meiosis leads to genetic variation due to crossing over and independent assortment.

3.Division

Mitosis includes one division while meiosis includes two.

4. Crossing over

It takes place in Meiosis while absence in Mitosis.

5. Chromosomes

Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes)

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what information is copied from DNA to mRNA​

Answers

Answer: transaction

Explanation:

Answer:

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.

Explanation:

PLEASE MARK ME AS BRAINLIEST

A
B
5. What is an extinct species? sc.7.L.15.3
a species that blends in easily with its
environment
a species that resembles another species
a species that was unable to adapt and
died out
a species that is bred for specific
characteristics
Copyright © McGraw Hill Education
D

Answers

Answer: A species that was unable to adapt and died out

Explanation: Good luck! :D

pls ans this qa i will mark u as brainlist ans​

Answers

ans b

Explanation:

milk teeth are less than permanent teeth

Help please -thanks!

Answers

Answer:

It is D

this shows that there was likely greater diversity during the time that is represented by that rock layer

it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations

also remember that a mass extinction event can fit within as large of a window as over 100k years because dating isn't bang on and a large cataclysmic even could take a long time for it to effect the whole planet enough to cause a mass extinction

Explanation:

It is D

Because it shows that there was a greater diversity during the time that is represented by that rock layer , it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations

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