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4 years ago

Which statement is supported by this cladogram?

Biology

2 answers:

Brrunno [24]4 years ago

7 0

Answer:

Organism A is most primitive

Explanation:

I took it and got 100%

Andre45 [30]4 years ago

6 0

Ans.

The given diagram represents a cladogram, which is used to show evolutionary relationships between various organisms or species.

The intersection points between the lines show the common ancestors, which evolved into different organisms at the end of the branches, as A, B, C, D.

The first branch end (A) represents that most primitive organism, while the last branch end (D) represents the most recent organism.

Thus, the correct answer is option). 'organism A is the most primitive organism.'

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How is a society likely to address the problem of overuse of wildlife resources?

morpeh [17]

Answer:

Loss of biodiversity.

Explanation:

The resources that are made available to the people must be used in such a way that it is available to everybody in the present time and a bit of it must also be saved for the future.

The resources such as medicines, wood logs and other resources that is obtained from the wildlife resources will be lost if not used in a sustainable way.

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3 years ago

What is the function of the radula in gastropods? It is used like a nose to sense nearby food. It is used like a tongue to test

garri49 [273]

Answer:

Explanation:

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3 years ago

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What is the main characteristic of eusocial groups? seasonal migration periods of solitary behavior divison of labor cooperative

Luda [366]

Answer;

Division of Labor

Explanation;

Eusocial animals express complex behaviors, like group decision-making.

Eusocial animals share several characteristics which includes: adults live in groups, cooperative care of juveniles (individuals care for brood that is not their own), reproductive division of labor (not all individuals get to reproduce), and overlap of generations.

For example; Ants, termites and many species of bees and wasps form tightly integrated social groups in which permanently nonreproducing workers help rear the offspring of a few fertile individuals, the queens and males.

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3 years ago

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What effect does human activity have on many ecosystems?

Irina-Kira [14]

Often human change the landscape to suit our needs and we freely take from out environment we also leave waste and trash that is not natural or biodegradable. this harms wildlife. in many cases human have directly or indirectly caused the extinction if a species

3 0

3 years ago

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A couple plans to have a child. the mother is homozygous for an autosomal recessive mutation. the father is heterozygous for the

adoni [48]

Answer:

The possible genotypes of the children are Hh and hh.
The probability of genotype Hh = 1/2
The probability of genotype hh = 1/2

Explanation:

Autosomal genes are the genes present on any of the chromosomes except the sex chromosomes.

An autosomal recessive mutation is the mutation in an autosomal gene which only expresses itself in the phenotype in homozygous condition and affects both males and female equally.

For the given question, let the autosomal gene be represented by H (dominant) and h (recessive)

According to the question,

Since the mother is homozygous her genotype would be hh and the father is heterozygous so his genotype would be Hh.

The following cross is made to know the genotypes of the children :

hh X Hh--------> Hh Hh hh hh

So the possible genotypes of the children are Hh and hh as shown in the cross.

Note : An image is attached representing the cross in a Punnett square.

The probability of an event = No. of favourable outcomes/total no. of outcomes

The probability of occurrence of genotype Hh would be = 2/4 = 1/2

Similarly, the probability of occurrence of genotype hh would be 2/4 = 1/2

3 0

3 years ago