Darwin hypothesized that new species could appear gradually through small changes in an ancestral species.what experiment did he conduct to test this hypothesis?

Answers

Answer 1

Answer: Answer;
He conducted an experiment with breeding pigeons.

Explanation;
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today.

Answer 2

Answer:

Answer:

I think that the answer is B

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Minerals _____.-contain plant material
-can be solids, liquids, or gases
-have a uniform structure or composition
-are made from the remains of plants and animals

Answers

have a uniform structure or composition, i think maybe

Answer:

have a uniform structure or composition

Explanation:

took the quiz

What do aerobic respiration and anaerobic respiration have in common?1)Both begin with glycolysis.
2)Both occur in mitochondria.
3)Both require oxygen to proceed.
4)Both end with the electron transport chain.

Answers

A . Both begin with gylcolysis

The answer for this question is A

What is one way that fungus are like plants and one way they are unlike plants?

Answers

Answer:

Like:-Have cell wall

Unlike:- Fungi are heterotrophs

Explanation:

Fungi cell wall composed of chitin rather than cellulose. Like plant fungi often grow in the soil . Like plant fungi cannot produce own food.

Like plants, fungi often grow in soil. Unlike plants, Fungi cannot produce their own food. Instead they absorb nutrients from their surroundings.

__________ species reproduce rapidly in a new habitat due to the lack of parasites and predators that would naturally control their population growth. A) Invasive B) Isolated C) Native D) Reproductive

Answers

An invasive species is defined as the organism that is not indigenous, or native, to a particular area. Invasive species can give rise to great economic and environmental harm to the new area.

What is native species?

Native species is defined as species which originated and developed in its surrounding habitat and has adapted to living in that particular environment.

Examples of invasive plant species are kudzu vine, English ivy, Japanese knotweed, etc. Animal examples are New Zealand mud snail, European rabbit, grey squirrel, carp, etc.

For more details regarding invasive species, visit:

brainly.com/question/1542287

#SPJ2

Answer:invasive

Explanation:

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. What is the probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy?

Answers

The answer is 0 percent.

Let's represent alleles and genotypes:
R - dominant allele for round seeds,
r - recessive allele for wrinkled seeds,
Y - dominant allele for yellow seeds,
y - recessive allele for green seeds.

RR - dominant homozygote with round seeds,
rr - recessive homozygote with wrinkled seeds,
Rr- heterozygote with round seeds,
YY - dominant homozygote with yellow seeds,
yy - recessive homozygote with green seeds,
Yy * heterozygote with yellow seeds.

So, in order to have wrinkled seeds, the offspring's genotype must contain rr, and to have green seeds, the offspring's genotype must contain either YY or Yy.
According to the image, all of the offspring will have round, yellow seeds (RRYY, RRYy, RrYY, RrYy).

If RRYY and RrYy is crossed the probability of the offspring having wrinkled and yellow seed is none (zero).

Further Explanation:

Dominant character is the trait that masks the effect of the other character and is phenotypically shown. Whereas, the characters which is been masked is referred to be as recessive character.

In the given case,

• R- Denotes the dominant round seed character.

• r- Represents wrinkled recessive character.

• Y- Shows the dominant character of yellow colored seeds.

• y- Is used to represent the green color recessive trait.

Mentioned below are the possible homo and hetrozygotes of the trait;

 YY – Dominant homozygote which represents the yellow seeds.

 yy – Recessive homozygote representing green color seed.

 Yy – Dominant hetrozygote that represents yellow seeds.

 RR – Dominant homozygote representing round seeds.

 Rr – Dominant hetrozygote representing round seeds.

 rr – Recessive homozygote representing wrinkled seeds.

In the given instance for the offspring to have wrinkled and yellow seed it should have the genotype of rrYy or rrYY.

If the cross of RRYY and RrYy is done as shown in the punnett square; the required condition is not possible.

Learn more:

1. Learn more about meiosis brainly.com/question/1600165

2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165

3. Learn more about human sperm and egg cell brainly.com/question/1626319

Answer Details:

Grade: High School

Subject: Biology

Chapter: Genetics- Mendalian Inheritance

Keywords:

RRYY, RrYy, round seeds, wrinkled seeds, yellow seeds, green seeds, Mendel, heterozygotes, homozygotes, dominant, recessive.

All of the following are functions of human skin, except A. absorbing mineral reserves, water, and waste. B. releasing excess heat to regulate body temperature. C. protecting the skin from pathogens. D. gathering information about the environment.

Answers

D.gathering information about the environment

All of the following are functions of human skin, except D. gathering information about the environment. human skin can not do that.

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