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quester [9]
3 years ago
8

PLEASE HELP QUICK!!!

Biology
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

its the 3rd one

Explanation:

chmical wheathering one

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Steady slate what the human body strives to maintain
mestny [16]
The human body strives to maintain homeostasis, the state of balance between internal and external change.
4 0
3 years ago
The Gram stain technique is valuable in distinguishing Bacteria from viruses whether or not a bacterium has pili. The flagella o
erastova [34]

Answer:

False

Explanation:

Gram stain technique is a method use to classify bacteria into large groups base on their different cell wall components. It differentiate gram positive and gram negative by coloring them with red or Violet colors.

Gram stain is use for identification and classification of bacteria.

Gram positive stain violet due to presence of thick layers of peptidoglylcan in their cell walls and gram negative stain red due to thin layers of peptidoglylcan in their cell walls.

8 0
3 years ago
Help Asap. i also need explanations to go with the answer
nlexa [21]

Answer:

D. In an ocean heated by volcanic activity

Explanation:

Most of Earth was covered in water, early organisms weren't evolved enough to walk on land at the time. There are some organisms that feed off of volcanic activity and use it as an energy resource and would adapt to the heat.

<em>"Hot spots create volcanoes on the seafloor. If these volcanoes rise above sea level to become islands, and if they occur in tropical waters, coral reefs will form on them. Since the volcanoes are cones, the reef forms in a circle around the volcano."</em>

<em>-</em><u>https://courses.lumenlearning.com/earthscience/chapter/ocean-organisms/</u>

<em>"Discovered only in 1977, hydrothermal vents are home to dozens of previously unknown species. Huge red-tipped tube worms, ghostly fish, strange shrimp with eyes on their backs and other unique species thrive in these extreme deep ocean ecosystems found near undersea volcanic chains."</em>

<em>-</em>https://ocean.si.edu/ocean-life/invertebrates/hydrothermal-vent-creatures

7 0
2 years ago
Which term includes all of the interactions between the organisms and physical
bulgar [2K]
Its b. Ecosystem

Population is the number of a species in an area, it has nothing to do with physical characteristics.

Abiotic is just an adjective meaning not alive

Competition is just the interactions between organisms in the struggle for food, water, space, mates, and many other things again not physical characteristics
5 0
2 years ago
Which data would not affect maximum likelihood estimates of phylogenies when comparing different tree hypotheses?.
Solnce55 [7]

The tree topology

The lengths of the branches

The branching order of the tree

Nucleotide substitution rate

These would not affect maximum likelihood estimates of phylogenies when comparing different tree hypotheses.

<h3>What is tree topology?</h3>
  • A unique kind of structure called a tree topology has numerous connected parts arranged like the branches of a tree.

<h3>The lengths of the branches:</h3>
  • Branch lengths are a sign of genetic divergence; the longer the branch, the more genetic divergence has taken place.
  • Usually, we calculate the average number of nucleotide or protein substitutions per site to assess the degree of genetic alteration.

<h3>The branching order of the tree:</h3>
  • The topology of a tree refers to its branching structure.
  • Species (or higher taxa), populations, genes, and proteins are examples of taxonomic units that the nodes represent.
  • A branch is referred to as an edge, and it represents an estimate of the length of time between the evolutionary relationships between taxonomic units.

<h3>What is nucleotide substitution rate?</h3>
  • The instantaneous rate of change from each of the four nucleotides to each of the other four nucleotides is summarized in the nucleotide substitution rate matrix.

To learn more about tree phylogeny visit:

brainly.com/question/8573900

#SPJ4

7 0
9 months ago
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