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cupoosta [38]
3 years ago
7

How do basophil cells react when a pathogen enters the body

Biology
1 answer:
drek231 [11]3 years ago
8 0
First, basophil cells release chemical signals to alert other white blood cells to the site of infection, where the pathogen is. To do this, the chemical signals released by the basophil cells cause inflammation in the bloodstream.
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Ozone in the troposphere is necessary to protect Earth's surface from harmful UV radiation.
romanna [79]

Answer:

False

Explanation:

In the troposphere, near the Earth's surface, human activities lead to ozone concentrations several times higher than the natural background level. Too much of this ground-level ozone is 'bad' as it is harmful to breathe and also damages vegetation.

The stratosphere or “good” ozone layer extends upward from about 6 to 30 miles and protects life on Earth from the sun's harmful ultraviolet (UV) rays.

7 0
2 years ago
A population of tree frogs living in the Amazon rainforest have two skin color phenotypes controlled by the same gene. Hozygous
Karo-lina-s [1.5K]

Answer:

A

Explanation: You can see that the green colored frogs  were once lower than the blue and as time started progressing the green started getting a higher population over the blue, as the blue decreased.

7 0
3 years ago
Read 2 more answers
Number of techniques for overcoming nervousness and releasing nervous energy before giving an oral presentation. One is to remin
UNO [17]

Answer: taking deep breaths

Explanation:

Apart from reminding oneself that you are prepared for the presentation. You can carry out a physical exercise like the breathing exercise by taking several deep breaths and exhaling to reduce nervousness. Also you should be mindful that the audience is there to hear you and not to judge you. In that way you can ease out tension.

8 0
3 years ago
घनत्व र सापेक्षिक घनत्व बीच फरक छुट्याउ​
katovenus [111]

English: Density is MassUnit Volume; relative density is the density compared to a reference substance (usually water) under standard conditions.

Nepali: घनत्व मास एकाई भोल्यूम हो; सापेक्ष घनत्व मानक अवस्था अन्तर्गत सन्दर्भ पदार्थ (सामान्यतया पानी) को तुलनामा घनत्व हो।

7 0
3 years ago
In crude oil affect eggs and larvae of fish and increase mortality.
Tpy6a [65]

Answer:

its c liquid petroleum 100% surr

3 0
2 years ago
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