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tekilochka [14]
1 year ago
9

What is an important environmental science topic that needs addressed in the world

Biology
1 answer:
jeka57 [31]1 year ago
8 0

Examples would be: global warming, acid rain, air pollution, urban sprawl, waste disposal, ozone layer depletion, water pollution, climate change and many more affect every human, animal, and nation on this planet.

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PLEASE HELP! 5th GRADE SCIENCE! When making lemonade, Emma adds sugar and lemon slices to water. The sugar seems to disappear an
Harlamova29_29 [7]

Answer:

B. The sugar dissolves in the water and the lemon slices do not.

Explanation:

The lemons floated to the top of the glass and the sugar dissolved. Only the sugar is soluble

6 0
3 years ago
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Which type of tissue is strong in one direction, but can rupture if lots of force is applied to the opposite direction of the fi
castortr0y [4]

Answer: I think it is Bone

Explanation:

6 0
1 year ago
"You discover a new species of snail, Biologica terificia, and find that its haploid number is 4 (n = 4). The somatic cells of B
Georgia [21]

Answer:

8 chromosomes

Explanation:

Diploid state is when an organism have two set of chromosomes (2n) i.e. combination of two haploid (n) gametes containing one set of chromosome each. Sexually reproducing organisms whose somatic or body cells are diploid (2n) undergo meiosis to produce gametes or sex cells with haploid number (n).

Therefore, in the newly discovered Biologica terificia species of snail, if the haploid state (n) of their gametes is 4, then their diploid (2n) somatic cells must be 4 × 2 = 8.

The question specifies the chromosomal number at the G1 phase of Interphase. At this stage, the cell is preparing to undergo division by increasing in size and duplicating its organnelles but not yet its genetic material which is not until the next phase called S-phase. Hence, the chromosome number of somatic cells remain 8 at the G1 phase.

6 0
3 years ago
What does it mean if there are two different alleles for a trait?
bonufazy [111]
If there are two different alleles for a trait, this means t<span>he trait could show up in two different forms.</span>
8 0
3 years ago
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Biologists surveying the bacterial flora of Yellowstone National Park, particularly populations located in the park’s famous hot
Goshia [24]

Answer:

The correct answer will be option-B

Explanation:

The data collected on the bacterial species in the Yellowstone national park involved:

1. habitat characteristics

2.DNA of bacteria from each population

3. compared with other species of the park

Based on these features, the biologist could apply all the types of species concept like ecological species concept which allows the study of the species from the same niche.

Also, they compared the DNA of the species of the bacteria and compared them which allows to trace the evolutionary patterns and showing the phylogenetic relationship.

Since bacteria do not reproduce by the sexual reproduction, therefore, a biologist cannot apply the biological species concept which states that species can be called species which can reproduce only with the closely rated species only or the individual of the same species.

Thus, Option-B is the correct answer.

5 0
3 years ago
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