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yan [13]
3 years ago
7

I need help on two of these please i give 20 points

Biology
2 answers:
Rzqust [24]3 years ago
5 0

Answer: 13-d :D

Explanation: A diaphragm allows different amounts of light to pass through the slide.

lorasvet [3.4K]3 years ago
4 0
Number 14 is objective lens
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landscape management attracts people to nature preserves and national parks what are the benefits to the wildlife in these areas
Ket [755]

Answer:

one benefits to wildlife in national and nature parks are, that there are is not hunting within the parks. not only does this protect the wildlife, it also sustains the balance of life. nature and wildlife parks allow a careful eye to be placed on the animals that are going extinct or are even victims of severe hunting. this allows this generation as well as their future offspring to be healthy and ensure safety. a benefit to the public would be the, scenic routes you can walk on a trail, besides walking and being outdoors, any contribution/ donations are ensured to go towards rehabilitation of the animals.

Explanation:

i made it up and it gave me 100%

3 0
2 years ago
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An elderly patient has come in to the clinic for her twice-yearly physical. the patient tells the nurse that she is generally en
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The nurse would not suggest anything. Nurse would take her in to see doctor for her physical. I'm pretty sure doc would suggest Miralax or something of the kind.
5 0
3 years ago
In California, a species of salamanders were geographically separated over time. The group that lived in southern California rel
alex41 [277]

Answer:

It ocurred a selection by allopatric speciation

Explanation:

The allopatric speciation refers to the evolution in which the same specie starts developing different characteristics because of geographic barrers and this characteristics after some time generates two different specie.

It happens because usually according to the environment or the predators, species have to develop different adaptations so they can survive. In this case we have two different types of camouflage adaptations made by the salamanders acording to the conditions so for one specie it is better to camouflage from the predator mean while to the other is better to use lived colors to seem as it is a poisonous animal and in this way avoid the predators.

So you can see the same specie develop different strategies to survive because of a geographic separation, generating an allopatric speciation.

8 0
2 years ago
4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
List five reasons to explain why the leaf is specialized for its function.​
kirza4 [7]

Answer:

has transparent epidermis to allow light to pass for photosynthesis

has chlorophyll to trap sunlight energy needed in photosynthesis

has stomata to allow passage of water and gases

6 0
2 years ago
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