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3 years ago

When and where was the possibility of growing thornless varieties of plants discovered?

1 answer:

7 0

The discovery of thornless plants was made around the turn of the 20th century. To name one such thornless plant, particularly, the Blackberry plant, the deviation from the thorned blackberry canes were discovered in the United States. Since then, several different thornless blackberry varieties have been cultivated for fruit gardens.

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Character displacement differs from resource partitioning because character displacement _________. A. is a fundamental differen

mr_godi [17]

Character displacement differs from resource partitioning because character displacement is directly linked to the evolution of genotypes that have allowed alternate resource use

<h3>What is genotypes ?</h3>

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. The number of copies of each chromosome found in that species, also known as ploidy, determines how many alleles a person can have for a certain gene.

In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person has two alleles for each gene. Homozygous refers to a genotype when both alleles are the same. Heterozygous refers to a genotype when there are two distinct alleles.

Phenotype, the observable qualities and attributes of an individual or creature, is influenced by genotype.

To learn more about genotypes from the given link:

brainly.com/question/12396620

#SPJ4

4 0

1 year ago

True or False. Animals vary tremendously in structure. Nevertheless, they can be categorized into a few basic body plans based o

NNADVOKAT [17]

Answer:

True

Explanation:

Animals can be categorized into 3 based on body symmetry

Those without any body symmetry (asymmetrical)
Those with bilateral body symmetry (bilateria)
Those with radial body symmetry (Radiata)

Animals can be categorized into 2 based on number of embryonic germ layer;

Those with two layers - endoderm and ectoderm (diplobastic)
Those with three layers - mesoderm in addition to ectoderm and endoderm (triploblastic)

Animals can be categorized based on presence/absence of body cavity or coelom;

No body cavity - acoelomates
False body cavity - pseudocoelomates
True body cavity - coelomates

Animals can be categorized into 2 based on characteristics of embryonic development;

Deuterostomes
Protosomes

5 0

3 years ago

Help.................

Karo-lina-s [1.5K]

Answer:

Autotrophs are organisms that use light energy or energy stored in chemical compounds to make their own food.

1st order heterotrophs are organisms that eat only plants

2nd order heterotrophs are organisms that eat herbivores

3rd order heterotrophs: organisms that eat herbivores and other carnivores

Top group: carnivores

Explanation:

Producers are named as such because they produce their own food either by photosynthesis or chemosynthesis. These organisms are called autotrophs and include plants.

There are various levels of consumers. The first is first order heterotrophs, which feed on the producers. These are herbivores and include, for example, a deer feeding on grass.

The next is second order heterotrophs, which feed on the first order heterotrophs. E.g. an owl eating a mouse. These are carnivores

The next layer are also carnivores, third order heterotrophs which eat second order heterotrophs, for example a lion eating a zebra.

4 0

3 years ago

What is the purpose of scientific argumentation?

RUDIKE [14]

<h3>Answer;</h3>

Evaluate the validity and reliability of processes and findings.

<h3>Explanation;</h3>

Scientific argumentation is a stage of scientific inquiry in which scientists make claims, based on observable evidence, and then clarify with justification of the evidence as relevant to the claims.
It is therefore, an important part of scientific inquiry as it aims evaluate the validity and reliability of processes and findings. Scientific claims from an investigation should be based on evidence that is justified based on the claims.

5 0

3 years ago

Read 2 more answers

Assume that short hair (L) is dominant to long hair (l) and black hair (B) is dominant to brown (b). If you find a black, short-

valentina_108 [34]

Answer:

You can determine its genotype by crossing it to an animal with a recessive genotype, llbb.

Explanation:

A test cross is performed when there is an individual with an unknown genotype and we desire to know if it is a heterozygote individual or a dominant homozygote individual.

The cross occurs between the individual of unkown genotype and a recessive homozygote individual.

6 0

3 years ago